<template>
<div class="tab-bar-item" @click="itemclick">
  <div  v-if="isActive">
    <slot name="item-icon" ></slot>
  </div>
  <div v-else>
    <slot name ="item-icon-active"></slot>
  </div>
  <div :style="activeStyle">
    <slot name="item-text"></slot>
  </div>
</div>
</template>

<script>
    export default {
        name: "TabBarItem",
        props:{
          path: String,
          activeColor:{
            type: String,
            default: 'blue',
          }
       },
        data(){
          return{
            // isActive :true
          }
       },
      computed:{
        isActive(){
          //活跃的等于当前的
          return this.$route.path.indexOf(this.path) !== -1
        },
        activeStyle(){
          return  this.isActive ? {color: this.activeColor}:{}
        }
      },
      methods:{
        itemclick(){
          this.$router.replace(this.path)
        },
      }
    }
</script>

<style scoped>
  .tab-bar-item{
    flex: 1;
    text-align: center;
    height: 49px;
    font-size: 14px;
  }
  .tab-bar-item img {
    width: 24px;
    height: 24px;
    margin-top: 3px;
    vertical-align: middle;
    margin-bottom: 2px;
  }
</style>
